mirror of
https://github.com/kichikuou/xsystem35-sdl2.git
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103 lines
2.8 KiB
C
103 lines
2.8 KiB
C
/*
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* sactamask.c: SACTEFAM.KLD 展開
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*
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* Copyright (C) 1997-1998 Masaki Chikama (Wren) <chikama@kasumi.ipl.mech.nagoya-u.ac.jp>
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* 1998- <masaki-c@is.aist-nara.ac.jp>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/* $Id: sactamask.c,v 1.1 2003/04/22 16:29:52 chikama Exp $ */
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <SDL.h>
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#include "portab.h"
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#include "system.h"
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#include "LittleEndian.h"
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#include "ags.h"
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#include "sact.h"
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#include "pms.h"
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#include "sprite.h"
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#include "effect.h"
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#include "mmap.h"
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// SACTEFAM を使ったマスク
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typedef struct {
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mmap_t *mmap;
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int datanum; // SACTEFAM.KLD 中のマスクファイルの数
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int *no; // シナリオ側での番号
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int *offset; // データへのオフセット
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} SACTEFAM_t;
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static SACTEFAM_t am;
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// SACTEFAM.KLD の読み込み
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bool smask_init(char *path) {
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if (am.mmap)
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return true; // already loaded
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mmap_t *m = map_file(path);
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if (!m)
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return false;
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am.mmap = m;
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am.datanum = LittleEndian_getDW(m->addr, 0);
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am.no = malloc(sizeof(int) * am.datanum);
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am.offset = malloc(sizeof(int) * am.datanum);
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for (int i = 0; i < am.datanum; i++) {
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am.no[i] = LittleEndian_getDW(m->addr, 16 + i * 16);
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am.offset[i] = LittleEndian_getDW(m->addr, 16 + i * 16 + 8);
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}
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return true;
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}
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// 指定番号の alphamask ファイルをよみだす
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static cgdata *smask_get(int no) {
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int i;
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for (i = 0; i < am.datanum; i++) {
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if (am.no[i] == no) break;
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}
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if (i == am.datanum) return NULL;
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return pms256_extract(am.mmap->addr + am.offset[i]);
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}
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/**
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* マスクつき画面更新
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*/
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void sp_eupdate_amap(int index, int time, int cancel) {
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cgdata *mask = smask_get(index);
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if (mask == NULL) {
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sp_update_all(true);
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return;
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}
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SDL_Surface *mask_sf = SDL_CreateRGBSurfaceFrom(mask->pic, mask->width, mask->height, 8, mask->width, 0, 0, 0, 0);
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sp_update_all(false); // old = gfx_texture, new = main_surface
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struct effect *eff = effect_sactamask_init(mask_sf);
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ags_runEffect(time * 10, cancel, (ags_EffectStepFunc)effect_step, eff);
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effect_finish(eff);
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ags_updateFull();
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SDL_FreeSurface(mask_sf);
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cgdata_free(mask);
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}
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